SU704473A3 - Universal synchronous hinge - Google Patents

Description

The invention relates to the field of mechanical engineering and can be used in transgushss. X.

Known universal synchro hinge containing the inner coupling half. made in the form of a shaft with three radially and evenly spaced ln axles on its shaft carrying spherical rollers, and an outer half coupling with rolling tracks, l rollers, each of which is formed by a pair of grooves of circular cross section, with this is the average line. These grooves coincide with a circle with a center located on the axis of rotation of the outer coupling half 1.

A disadvantage of the known construction is the impossibility of achieving greater bending angles between the shafts (more than 30 °). The need to increase the angles leads to an increase in the dimensions of the hinge, while their transmitting capacity decreases.

In order to broaden the operational capabilities of the proposed hinge n.uch, increase the skew angle of the connected shafts, the shaft of the inner coupling half in the area adjacent to the trunnions

. and the outer floor of the coupling is an end support track. the track in areas, the rolling speed for rolls of the surface, is located Tv; c to the axis of the outer semi-half K,: {d; 1 n / osk the surface is located ;;: in,. , r about an axis

The geehgraph section of the shaft is formed by iM-tests made on the outer cnxuocT; V5L5 Inner coupling half. Shaft tnsnpay coupling half is made of X. connected with detachable movable joints: ation and having means of os11; ad1-; alyy fixation. gas-mobile movable joint; ipchaty with bevels on the face of the axiocth teeth.

SpeedS-1L axle fixing is done; Along the support and stop rings, fit into one part of the shaft, while the end of the shaft is made spherical, 1 activating with the end of the first part of the outer ring.

The support ring has a spherical surface.

The means for radial fixation is made in the form of interacting spherical surfaces of the coupling halves.

FIG. 1 shows the proposed hinge; in fig. 2 - the same, end view of the shaft with the outer half coupling; in fig. 3 shows a section: A-A in FIG. one; in fig. 4 shows an embodiment of the proposed hinge; in fig. 5 is a section BB in FIG. four; in fig. 6 shows an embodiment of the hinge (in FIG. 4); 1 g is the maximum bending angle of the shafts.

The proposed hinge is intended to interconnect two shafts 1 and 2, one of which is leading and the other driven. The drive shaft with the axis XX has at its end three trunnions 3, the axes of which are at an angle of 120 ° one relative to the other, in the same plane, perpendicular to the axis of the shaft 1. On each trunnion there is a spherical roller 4, the outer diameter d of which is larger heights h and greater than distance g of its center from the shaft axis.

The shaft 2 with the Y – Y axis is rigidly connected to the outer floor by a coupling 5, in which the raceways 6 are formed for rollers.

The raceways have a toric shape and each of them is formed by a pair of grooves with a circular cross section, the middle line of which is another circle 7 with a center located along the axis of the shaft.

Forming 8 of the outer surface of the outer coupling half is mainly spherical, which ensures its small dimensions. The quality tracks adjoin the other, forming grooves 9, Yu, intersecting with each other, which does not affect the strength of the outer half coupling. Between the two grooves of the same raceway there are connecting zones P.

In the zones separating the adjacent rolling tracks and along the end 12 of the outer coupling half, the end support track 13 is formed, which is formed by flat surfaces inclined to the axis of the outer coupling with an angle of about 45 °.

The shaft 1 in the area 14 adjacent to the trunnions is made of a triangular cross section. The tops of the triangle are rounded. The triangular cross-section of shaft 1 is formed by three lisky 15., Chyek and. They have the shape of a triangle of variable depth.

This shape of the zone 14 of the shaft 1 provides the interface of this zone when the iOB, iOB bends, with the end support track 13.

Such a cardan can operate at a maximum bending angle of about 42 ° with a high transmission capacity.

On the shaft 1 and the outer coupling half 5 are made grooves 16 and 17 for the installation of the cover of the elastomer, forming a sealed

sheath for the mechanism and containing a lubricant.

The rollers 4 may be made and nonsmooth.

According to the second embodiment of the cardan shaft, an expansion 18 is made on the shaft 1 forming a bowl 19. On the inside of the expansion 18 there is a tooth 20. A bowl 19 and has an internal spherical surface 21 interacting with the spherical surface of the coupling half 5. The driving shaft is made of two parts 1 and 22 connected by a detachable connection. At one end of the second part, the pins 3 are made with rollers 4, and at the other end, the tooth 23 is engaged with the teeth 20. The tooth 23 is cut off from the ends, which allows the transfer of glomen under the htl between the shaft axes. The second shaft portion 22 is held by the stop ring 24 and the support ring 25, having a spherical surface. The stop ring 24 contacts with its surface 26 with the corresponding surface 27 of the shaft 1, which can also be spherical. The end of the second part of the shaft in contact with the first part of the shaft has a spherical surface 28.

Job 11 is carried out in the following way. At the maximum bending angle, the Y-axis of the shaft 2 forms with the K-Z axis of the shaft part 22 an angle a., Which can reach 41 or 42 °, while the ZZ axis itself forms an angle with the X-X axis of the shaft 1, which may be in the order of 5 °. The maximum working angle of the car. Corresponds, therefore, to the sum. and can, therefore, reach or even slightly exceed 46 °.

In the two described embodiments, the execution of ka) dan has especially small dimensions and high transmission capacity. This transfer ability can be illustrated by the following calculation, if the cardinality is not calculated by the formula

With p vd-h.f p,

geder is the average allowable pressure on the projected surface of the roller for the steels currently used to manufacture rotating bodies; d, is the diameter of the rollers; h is the height of a roller or useful spherical zone, d is the distance from the center of the roller to the axis

cardan;

n number of clips ,,

then for a normal cardan with bo, with a working angle we get C 20700 times, for a maximum bending angle of 43 °.

Claims (5)

With equal dimensions, the gimbal (version (| eig 1-3), which can work at an almost equivalent (42 °) maximum bending angle, has a transmission capacity C 54,400 times, while the gimbal made in Fig. 4b, has a transmission capacity of 41,600 times, but with a significantly greater bending angle (46 °). The cut edges provided at the level of the free edge of the part can be almost flat or preferably have a slightly concave shape. Similarly, the flats of the shaft bearing the trunnions shape concave, convex or even double curvature, which is not a disadvantage, if this shape is given to them using cold molding. 1. Universal synchronous hinge containing an inner coupling half, made in the form of a shaft with three radially and evenly spaced axles at its end, carrying spherical rollers, and an outer half coupling with raceways 5-: for rollers, each of which is formed by a pair of grooves of circular section, while the middle line of these grooves coincides with a circle with a center located on the axis of rotation of the outer coupling half. characterized in that, in order to expand its operational capabilities by increasing the number of skewed interconnecting halls, the shaft of the inner coupling half in the zone adjacent to the trunnions is made triangular cross-sectional section, and the outer coupling half is filled with the end support track. 2. A hinge according to claim 1, characterized in that the end support track in the zones separating the raceways for the rollers has flat surfaces inclined to the axis of the outer coupling half. 3. A hinge according to claim 2. characterized in that each flat surface is located at an angle of S 45 relative to the axis of the outer coupling half. 4. A hinge according to claim 1, characterized in that the three-sided cross-section of the shaft is formed by three feet - ;, made with: and the outer surface: the shaft of the inner half-coupling. 5.Ulapfinp of iiH-ii, characterized in that the shaft of the inner coupling half is made up of parts connected by a detachable movable joint and having means of axial and radial fixation. 6.lUapKHD ijo PP, 1, 5, differing in the connection of the end face: the rings of the rings, while spherical. from .. ayushch1s gb :: oh fixation .n o: c; -: X; rzh; nose oh semi h J i i h pi CH1 | Ni.y .Л 72 13 2 " H 4 F1 / 2 .d 5 (Rig. 22 20 2C Figure 5 18